Texas Instruments TI-30X IIS - Page 66

© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X ÙS: A Guide for Teachers
59
Use this formula to find the amount
of border you need if you want to
put a circular border all the way
around the tree.
g
Press Display
2 V g V 1.5
<
22
**
p
**
1.51.5
'
9.4247779619.424777961
DEG
C = 2
p
r = 2 x
p
x 1.5m
Circumference